Datasheet > DS2465P+T

DS2465P+T

更新时间： 2022-03-03 21:49:59

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描述
SHA-256 Coprocessor with 1-Wire Master Function

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DS2465P+T 数据手册

ABRIDGED DATA SHEET

DS2465

SHA-256 Coprocessor with 1-Wire Master Function

ABSOLUTE MAXIMUM RATINGS

Voltage Range on Any Pin Relative to GND........-0.5V to +4.0V

Maximum Current into Any Pin...........................................20mA

Operating Temperature Range ......................... -40NC to +85NC

Junction Temperature .....................................................+150NC

Storage Temperature Range............................ -55NC to +125NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) .....................................+260NC

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-

tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute

maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

(T = -40NC to +85NC, unless otherwise noted.) (Note 1)

PARAMETER

Supply Voltage

SYMBOL

CONDITIONS

MIN

TYP

MAX

3.63

750

1.0

UNITS

2.97

3.3

(Note 2)

Supply Current

Sleep mode (SLPZ pin low), V

(Note 3)

= 3.63V

0.5

1.0

Power-On Reset Trip Point

1-Wire Input High

1.4

POR

0.6 O

IH1

0.2 O

1-Wire Input Low

IL1

Low range

High range

375

750

500

750

1350

0.25

1.2

1-Wire Weak Pullup Resistor

(Notes 3, 4)

WPU

1000

1-Wire Output Low

= 2.97V, 8mA sink current

OL1

Active Pullup On Threshold

(Note 3)

0.95

Equal to t

2.5

IAPO

1-Wire time slot

REC0

Active Pullup On Time

(Notes 3, 5)

1-Wire reset standard speed

1-Wire reset overdrive speed

2.375

0.475

2.625

0.525

APU

0.5

Active Pullup Impedance

1-Wire Output Fall Time (Note 3)

IO PIN: 1-Wire TIMING (Note 6)

Reset Low Time

= 2.97V, 4mA load (Note 3)

APU

Standard

Overdrive

0.25

0.05

0.2

Standard

See

Table 6

-5%

+9%

RSTL

Overdrive

Reset High Time

Standard and overdrive

Standard

Equal to t

RSTH

RSTL

See

Table 6

Presence-Detect Sample Time

-5%

+9%

MSP

Overdrive

Standard

7.6

1.9

7.6

8.72

2.18

8.72

Sampling for Short and Interrupt

Write-1/Read Low Time

Overdrive

Standard

See

Table 6

W1L

Overdrive

-5%

+9%

�� Maxim Integrated Products

123 4 5 6 7...31

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